Example:
Creation of a new file named 'test_write.h5' on the folder 'C:\temp'.
Add a new dataset sames 'some_name' in the root group /.
This datased is an unidimensional vector of a compound type, with this structure:
...
and filled with an array with two values:
15 3.0 2.0 1.0
2 1.1 2.2 3.3
Add another dataset named 'other_name', with a bidimensional array of floats, in 2 columns, and filled with:
15.1 3.0
22.0 1.4
6.5 2.8
(then the number of rows is 3)
Datasets are compressed with maximum compression level=9
Finally the file is closed
| Code Block |
|---|
package require hdf5 |
...
set h hdf2 |
...
hdf5 $h {C:\temp\test_write.h5} |
...
set compress_level 9 |
...
$h set -vtype compound -fields {index uint v1 float v2 float v3 float} -compress $compress_level -ncolumns 1 /some_name {15 3.0 2.0 1.0 2 1.1 2.2 3.3} |
...
$h set -vtype float -compress $compress_level -ncolumns 2 /other_name {15.1 3.0 22.0 1.4 6.5 2.8} |
...
$h close |
Example:
Open an existent file named'test_read.h5' for reading.
get the attribute named /mesh/ntc1_2/all and print all its names and values
get the attribute named /mesh/ntc1_2/all and print the value of the attribute named 'type'
get the dimensions of the dataset named /mesh/ntc1_2/all/selectorOnMesh/GC011 and print them
print the data stored in this datased
get all groups child ot of the root group (named always \ allways), and for each group get its datasets and print its data.
| Code Block |
|---|
package require hdf5 |
...
set h hdf1 |
...
hdf5 $h {C:\temo\test_read.h5} |
...
puts [$h get_attribute /mesh/ntc1_2/all] |
...
puts [$h get_attribute /mesh/ntc1_2/all type] |
...
set dataset /mesh/ntc1_2/all/selectorOnMesh/GC011 |
...
puts [$h get -dimensions $dataset] ;#get the dimensions only |
...
puts [$h get $dataset] ;#get the data |
...
set groups [$h glob -directory \ -types group *] |
...
foreach group $groups { |
...
set datasets [$h glob -directory \$group -types dataset *] |
...
foreach dataset $datasets |
...
{ set data [$h get $dataset] |
...
puts $data } } $h close |